Friday, December13, 2019
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Marine Weather and Tides
Emeryville, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:14AMSunset 4:51PM Friday December 13, 2019 5:56 PM PST (01:56 UTC) Moonrise 6:29PMMoonset 8:40AM Illumination 94% Phase: Waning Gibbous; Moon at 17 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 256 Pm Pst Fri Dec 13 2019
Tonight..W winds 10 to 20 kt. Rain likely this evening. A slight chance of rain.
Sat..W winds 10 to 15 kt.
Sat night..W winds 10 to 20 kt with gusts up to 25 kt. A slight chance of rain.
Sun..NW winds up to 10 kt.
Sun night..NW winds up to 10 kt.
Mon..NE winds up to 10 kt.
Mon night..NE winds 5 to 10 kt.
Tue..E winds 5 to 10 kt. A chance of rain.
Wed..E winds 5 to 10 kt. A chance of rain.
PZZ500 256 Pm Pst Fri Dec 13 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A weak trough and cold front will drift through the coastal waters tonight. Southerly winds will switch to southwesterly this evening and then northwest overnight tonight through Saturday. Rain will fall across the waters today with showers lingering through Saturday. Winds are expected to increase and become breezy on Saturday. A large long- period northwest swell will impact the waters through Saturday.


7 Day Forecast for Marine Location Near Emeryville, CA
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location: 37.85, -122.29     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 132341 AFDMTR

Area Forecast Discussion National Weather Service San Francisco Bay Area 341 PM PST Fri Dec 13 2019

SYNOPSIS. Chances of light rain will continue tonight and into this weekend as a disturbance moves across Northern California. Drier and colder conditions will prevail on Sunday, with frost possible Sunday night. An unsettled possibly wet pattern will likely to return by the middle of next week.

DISCUSSION. As of 1:43 PM PST Friday . Under cloudy skies, area temperatures are running cooler than yesterday at this time by several degrees, with readings ranging from the mid 50s to the lower 60s. Only light returns are being picked up by radar right now, but some brief showers moved through the Bay Area earlier today. Over the past three hours, only a few hundredths of an inch have been picked up. Areas of light rain or drizzle will occur overnight, and taper off by morning. Rainfall amounts are expected to be a quarter inch or less, with the bulk of that occurring in the coastal hills of the North Bay. A cold front will then move across the region late in the day on Saturday. Although this cold front will bring some light rain to the region, the biggest impact will be with the colder and drier air moving in behind the front. Although Sunday will be slightly cooler than Saturday, the main impact will be on the overnight temperatures Sunday night with frosty conditions will be possible as temperatures fall into the lower to mid 30s across the inland valleys.

Drier conditions are expected for early next week as high pressure builds along the coast. Although there are still inconsistencies amongst the model solutions, medium range models still indicate a return to a more unsettled pattern beginning the middle of next week with more well-defined storm systems moving through.

AVIATION. as of 03:41 PM PST Friday . For 00z tafs. Most sites currently VFR with FEW to SCT lower cigs between 1,000 and 3,000 ft AGL ahead of a weak trough and cold front that remain just offshore. Current radar shows light showers over the North Bay that will move southward this evening across the rest of the region. Still expecting cigs to lower this evening to MVFR/IFR with showers in the vicinity until late tonight/tomorrow morning as showers taper off from north to south. Patchy fog will also be possible tonight across the North Bay once showers clear out. Overall, expecting MVFR to LIFR conditions to prevail overnight and tomorrow morning before cigs gradually lift and then briefly clear towards the afternoon. Another weak disturbance is then set to move in late tomorrow afternoon/early evening bringing more light showers and lowering cigs.

Winds this afternoon mainly out of the S/SE ahead of a weak trough and cold front, these winds may occasionally exceed 10 kt in some locations. Expecting winds to shift out of the W/SW by the evening.

Vicinity of KSFO . Cigs have lifted to VFR this afternoon, but expecting MVFR conditions to return this evening and continue to lower overnight. Some uncertainty as to when cigs will start to lower this evening and then lift tomorrow morning. Winds have been inconsistent this afternoon with a period of SE winds around 10 kt just a short while ago where now observations show N/NE winds less than 5 kt. S/SE winds around 10 kt will remain possible over the next couple of hours ahead of a weak trough and cold front before winds shift out of the W/SW heading into the evening. W/NW winds will increase overnight and tomorrow morning.

SFO Bridge Approach . Similar to KSFO.

Monterey Bay Terminals . VFR conditions currently with showers in the vicinity. Expect cigs to lower by this evening with IFR conditions prevailing overnight and tomorrow morning. Cigs will lift late tomorrow morning and into the afternoon. Light showers will remain possible overnight. Generally light winds expected through tonight with increasing W/NW winds late tomorrow morning.

MARINE. as of 02:56 PM PST Friday . A weak trough and cold front will drift through the coastal waters tonight. Southerly winds will switch to southwesterly this evening and then northwest overnight tonight through Saturday. Rain will fall across the waters today with showers lingering through Saturday. Winds are expected to increase and become breezy on Saturday. A large long- period northwest swell will impact the waters through Saturday.

MTR WATCHES/WARNINGS/ADVISORIES. Tday. High Surf Advisory . CAZ006-505-509-529-530 SCA . Pt Reyes to Pigeon Pt 0-10 nm SCA . Pigeon Pt to Pt Pinos 0-10 nm SCA . Pt Pinos to Pt Piedras Blancas 0-10 nm SCA . Pt Arena to Pt Reyes 0-10 nm SCA . Pt Arena to Pigeon Pt 10-60 nm SCA . Pigeon Pt to Pt Piedras Blancas 10-60 nm SCA . Mry Bay



PUBLIC FORECAST: Sims AVIATION: AS MARINE: ST

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LNDC1 4 mi62 min WSW 5.1 G 6 57°F 1019.8 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 4 mi62 min SW 6 G 6
OBXC1 4 mi62 min 56°F 56°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 4 mi62 min SW 2.9 G 4.1 56°F 1019.9 hPa
AAMC1 - 9414750 - Alameda, CA 5 mi62 min W 4.1 G 5.1 56°F 56°F1020 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 6 mi62 min SW 9.9 G 12 56°F 1019.8 hPa
PXSC1 7 mi62 min 57°F 57°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 7 mi62 min N 2.9 G 4.1 56°F 1018.7 hPa
RCMC1 - 9414863 - Richmond, CA 8 mi62 min SSW 5.1 G 7 56°F 55°F1019.2 hPa
FTPC1 - 9414290 - San Francisco, CA 10 mi62 min WSW 5.1 G 8.9 55°F 55°F1019.8 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 14 mi62 min WSW 7 G 8.9 57°F 1019.1 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 15 mi62 min W 6 G 8 57°F 55°F1019.1 hPa
UPBC1 16 mi62 min W 9.9 G 11
PCOC1 - 9415144 - Port Chicago, CA 19 mi62 min SW 2.9 G 5.1 57°F 54°F1018.7 hPa
46237 - San Francisco Bar, CA (142) 19 mi56 min 55°F10 ft
RTYC1 - 9414523 - Redwood City, CA 24 mi62 min W 1.9 G 2.9 60°F 58°F1020.1 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 25 mi62 min SSW 2.9 G 4.1 58°F 1018.7 hPa
SFXC1 - San Francisco Bay Reserve, CA 28 mi71 min W 4.1 56°F 1019 hPa51°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 30 mi36 min SSW 7.8 G 9.7 56°F 56°F1020.4 hPa
PRYC1 - 9415020 - Point Reyes, CA 38 mi62 min 55°F1019.5 hPa
46012 - HALF MOON BAY - 24NM South Southwest of San Francisco, CA 46 mi36 min SW 5.8 G 9.7 56°F 57°F1020.6 hPa55°F

Wind History for Oakland Middle Harbor, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Oakland, Metro Oakland International Airport, CA11 mi63 minW 510.00 miLight Rain58°F53°F84%1019.7 hPa
Concord, Buchanan Field, CA16 mi63 minSSW 610.00 miLight Rain60°F50°F70%1017.5 hPa
Hayward, Hayward Air Terminal, CA16 mi62 minW 410.00 miLight Rain58°F53°F84%1020.4 hPa
San Francisco, San Francisco International Airport, CA16 mi60 minW 610.00 miOvercast58°F53°F84%1019.8 hPa
San Carlos Airport, CA22 mi69 minN 08.00 miOvercast59°F53°F82%1020 hPa

Link to 5 minute data for KOAK

Wind History from OAK (wind in knots)
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Last 24hrNW4CalmW3NW4NW4W6W4CalmCalmCalmCalmCalmCalmS3S4S5SW3W5W5S3SE12SE3NW4W5
1 day agoCalmS6S6SE7S9S6S4S6S7S4S3SW5CalmCalmSE3S4S5S3S3W3NW5N4NW5W3
2 days agoNW8NW9CalmE3CalmNE3CalmE3E6E4E4SE3E6SE6SE5SE4SE4S3CalmCalmE4W3CalmW5

Tide / Current Tables for Berkeley, California
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Berkeley
Click for Map
Fri -- 01:23 AM PST     4.89 feet High Tide
Fri -- 05:51 AM PST     3.24 feet Low Tide
Fri -- 07:16 AM PST     Sunrise
Fri -- 08:40 AM PST     Moonset
Fri -- 11:55 AM PST     6.64 feet High Tide
Fri -- 04:50 PM PST     Sunset
Fri -- 06:29 PM PST     Moonrise
Fri -- 06:48 PM PST     -0.93 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.44.94.84.43.83.43.23.54.14.95.76.46.66.25.13.51.70.2-0.7-0.9-0.50.41.52.7

Tide / Current Tables for Berkeley Yacht Harbor .9 mi S, San Francisco Bay, California Current
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Berkeley Yacht Harbor .9 mi S
Click for Map
Fri -- 01:55 AM PST     -0.01 knots Slack
Fri -- 03:44 AM PST     -0.22 knots Max Ebb
Fri -- 05:39 AM PST     0.00 knots Slack
Fri -- 07:16 AM PST     Sunrise
Fri -- 08:40 AM PST     Moonset
Fri -- 09:36 AM PST     0.25 knots Max Flood
Fri -- 12:36 PM PST     -0.00 knots Slack
Fri -- 03:52 PM PST     -0.51 knots Max Ebb
Fri -- 04:50 PM PST     Sunset
Fri -- 06:29 PM PST     Moonrise
Fri -- 06:44 PM PST     0.00 knots Slack
Fri -- 10:47 PM PST     0.38 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.1-0-0.2-0.2-0.100.10.20.20.20.20.1-0.1-0.3-0.5-0.5-0.4-0.200.20.30.40.4

Weather Map
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wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (20,4,5,8)
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Ground Weather Radar Station Sacramento, CA
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